US4067401A - Pile-driving hammer - Google Patents

Pile-driving hammer Download PDF

Info

Publication number
US4067401A
US4067401A US05/677,925 US67792576A US4067401A US 4067401 A US4067401 A US 4067401A US 67792576 A US67792576 A US 67792576A US 4067401 A US4067401 A US 4067401A
Authority
US
United States
Prior art keywords
hammer
cylinder
lining
cavities
pile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/677,925
Other languages
English (en)
Inventor
Hans Gunther Schnell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Van Kooten BV
Original Assignee
Van Kooten BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Van Kooten BV filed Critical Van Kooten BV
Application granted granted Critical
Publication of US4067401A publication Critical patent/US4067401A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1075—Wedges, e.g. ramps or lobes, for generating pressure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/18—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with floating brasses or brushing, rotatable at a reduced speed

Definitions

  • the invention relates to a pile-driving hammer comprising a hammer cylinder, a piston accomodated in said hammer cylinder in sealing relationship with a sliding face of the hammer cylinder and means for supplying lubricant to said sliding face, which consists of a lining of wear-resistant material.
  • Pile-driving hammers of the kind set forth are known.
  • the lining is formed therein by a porous chromium layer.
  • the pores of the chromium layer are filled after some time with material worn off the sliding face in the form of very small particles, so that the sliding face obtains so great a smoothness that practically immediately after the application the lubricant drips off the sliding face.
  • the lack of adequate lubricant on the sliding face and the resultant high amoutn of wear shorten the lifetime of the known hammer, particularly when the hammer has to drive piles into the ground at a large rake angle.
  • the invention provides a pile-driving hammer having a long lifetime, since cavities are provided in the lining distributed along the surface of the sliding face. In this hammer the lubricant is retained in the cavities.
  • the cavities have the shape of slots.
  • the slot-shaped cavities are cleaned by the flowing lubricant. Thus any material worn off and collected in the cavities is rinsed away.
  • the slot-shaped cavities are disposed in a direction inclined to the axial direction of the hammer cylinder.
  • the lubricant is guided along a long path past the sliding face so that it is utilized very effectively.
  • FIG. 1 is a schematic survey of the pile-driving operation by means of a pile-driving device comprising a hammer in accordance with the invention
  • FIG. 2 is an enlarged side elevation partly broken away of the driving hammer shown in FIG. 1,
  • FIG. 3 is an enlarged sectional view of the cylinder wall taken on the line III--III in FIG. 2 during the formation of cavities in the lining of the hammer cylinder,
  • FIG. 4 is an elevational view of part of the ready lining of FIG. 3 and
  • FIGS. 5,6,7 and 8 are elevational views corresponding with that of FIG. 4 of further variants.
  • a setting frame 4 is disposed on the ground 3, said frame having guide tubes 5, which determine the location and the direction of the pile 1 to be driven.
  • a pile-driving device 7 is arranged on the pile 1.
  • the pile-driving device 7 comprises a driving hammer 8, a guide frame 9 for guiding said hammer 8 and a pile cap guide 10 bearing on a driving cap 11.
  • the driving hammer 8 shown in FIGS. 1 and 2 is formed by a known Diesel hammer comprising a hammer cylinder 13, a heavy piston 14 accomodated in the hammer cylinder 13, an impact piece 12 sealed to the hammer cylinder 13 and adapted to slide, a fuel pump 15 and means 16 for supplying lubricant, for example oil, to the sliding face 17 of the hammer cylinder 13, along which the piston 14 is adapted to slide up and down in sealed relationship by means of piston rings 18.
  • the pile-driving device 7 is suspended to a hook 34 by means of cables 32 and 33 at an angle of inclination f to the vertical plane 31, the piston 14 bears on the sliding face 17 with a heavy normally directed force.
  • FIG. 3 shows a fraction of a cylinder wall 19.
  • a lining 21 of chromium, cadmium or another, wear-resistant material or a wear-resistant alloy is galvanically applied to the steel 20, whilst the inner surface 30 of hammer cylinder 13 is uncovered.
  • the thickness d of the layer may be of the order of 0.2 to 0.5 mm.
  • FIGS. 5 to 8 show other shapes of the cavities 25,26,27 and 28 respectively by using a different foil with a different hole pattern, stuck to the lining 21, the wear-resistant material being subsequently removed galvanically at the location of the holes.
  • FIG. 5 shows vertical slot-shaped cavities 25 in the lining 21, but said cavities may extend parallel to the axial direction 29. Thus impurities can be more readily flushed out of the cavities 25.
  • the slot-shaped cavities 26 may be horizontal or at right angles to the axial direction 29 of the hammer cylinder 13 so that the lubricant is better retained in the cavities 26.
  • the cavities 27 are preferably orientated at an angle of inclination g to the axial direction 29 of the hammer cylinder 13 so that these cavities 27 are thoroughly flushed and, moreover, the lubricant is long retained on the lining 21.
  • the lubricant is guided on a step-shaped helical path along the cylindrical lining 21.
  • the cavities 28 may have a curved shape of the slot.
  • the cavities 25,26,27 and 28 may have a width h of the order of 1 to 3 mms.
  • the relative distance j may be of the order of 1 to 5 cms.
  • the lubricant supply 16 may be formed by a lubricant pump spraying at every stroke the lubricant against the cylinder wall 19 at the top end of the hammer cylinder 13. As shown in FIG. 2 the lubricant supply 16 is formed by a reservoir 35 in the top end of the piston 14. The reservoir 35 has channels 36 distributed along its circumference, from which is leaking lubricant which arrives at the sliding face 17, where it is retained by the cavities 22,25,26,27 or 28.
  • the diameter e of the holes 24 of FIG. 3 lies between 0.2 and 0.5 mm, the relative distance k being 0.5 to 2 mms. Accordingly the width h of the cavities 25,26,27 and 28 preferably lies between 0.5 and 1 mm, the relative distance j being 2 to 4 mms respectively.
US05/677,925 1975-04-11 1976-04-19 Pile-driving hammer Expired - Lifetime US4067401A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7504371A NL7504371A (nl) 1975-04-11 1975-04-11 Heihamer.
NL7504371 1975-04-11

Publications (1)

Publication Number Publication Date
US4067401A true US4067401A (en) 1978-01-10

Family

ID=19823559

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/677,925 Expired - Lifetime US4067401A (en) 1975-04-11 1976-04-19 Pile-driving hammer

Country Status (9)

Country Link
US (1) US4067401A (nl)
JP (1) JPS51124007A (nl)
AU (1) AU1259776A (nl)
BE (1) BE840501A (nl)
CA (1) CA1031588A (nl)
DE (1) DE2613026A1 (nl)
FR (1) FR2307088A1 (nl)
GB (1) GB1485239A (nl)
NL (1) NL7504371A (nl)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715260A (en) * 1986-12-22 1987-12-29 General Electric Company Seal
US5230615A (en) * 1991-09-27 1993-07-27 Zexel Corporation Fuel injection pump having oil temporarily-storing groove
US20060008370A1 (en) * 2004-07-09 2006-01-12 Protedyne Corporation Liquid handling device with surface features at a seal
US20060137889A1 (en) * 2004-12-23 2006-06-29 Andreas Hanke Hammer mechanism for power tool
US20060159577A1 (en) * 2004-12-23 2006-07-20 Martin Soika Drive mechanism for a power tool
US20180030682A1 (en) * 2015-02-10 2018-02-01 Aydin Ozkan A connection adapter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112921967A (zh) * 2021-01-25 2021-06-08 朱丁耀 一种建筑工程机械主升杆万向铰座机构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1689752A (en) * 1924-10-09 1928-10-30 Samuel W Rushmore Lubricating system for internal-combustion engines
US1751906A (en) * 1926-12-27 1930-03-25 Merriman Brothers Inc Hollow cylinder or bushing and method of recessing the same
US2085976A (en) * 1936-02-25 1937-07-06 Heintz & Kaufman Ltd Cylinder liner
US2166857A (en) * 1934-10-06 1939-07-18 Bugatti Jean Lubricating device
US2907304A (en) * 1957-04-04 1959-10-06 Macks Elmer Fred Fluid actuated mechanism
US3106138A (en) * 1960-06-27 1963-10-08 Hans Toma Piston type hydrostatic power units
US3521531A (en) * 1966-11-17 1970-07-21 Sulzer Ag Trunk-type piston for internal combustion engines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1689752A (en) * 1924-10-09 1928-10-30 Samuel W Rushmore Lubricating system for internal-combustion engines
US1751906A (en) * 1926-12-27 1930-03-25 Merriman Brothers Inc Hollow cylinder or bushing and method of recessing the same
US2166857A (en) * 1934-10-06 1939-07-18 Bugatti Jean Lubricating device
US2085976A (en) * 1936-02-25 1937-07-06 Heintz & Kaufman Ltd Cylinder liner
US2907304A (en) * 1957-04-04 1959-10-06 Macks Elmer Fred Fluid actuated mechanism
US3106138A (en) * 1960-06-27 1963-10-08 Hans Toma Piston type hydrostatic power units
US3521531A (en) * 1966-11-17 1970-07-21 Sulzer Ag Trunk-type piston for internal combustion engines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715260A (en) * 1986-12-22 1987-12-29 General Electric Company Seal
US5230615A (en) * 1991-09-27 1993-07-27 Zexel Corporation Fuel injection pump having oil temporarily-storing groove
US20060008370A1 (en) * 2004-07-09 2006-01-12 Protedyne Corporation Liquid handling device with surface features at a seal
US7246551B2 (en) * 2004-07-09 2007-07-24 Protedyne Corporation Liquid handling device with surface features at a seal
US20060137889A1 (en) * 2004-12-23 2006-06-29 Andreas Hanke Hammer mechanism for power tool
US20060159577A1 (en) * 2004-12-23 2006-07-20 Martin Soika Drive mechanism for a power tool
US8122972B2 (en) 2004-12-23 2012-02-28 Black & Decker Inc. Drive mechanism for a power tool
US20180030682A1 (en) * 2015-02-10 2018-02-01 Aydin Ozkan A connection adapter

Also Published As

Publication number Publication date
GB1485239A (en) 1977-09-08
DE2613026A1 (de) 1976-10-21
FR2307088B3 (nl) 1979-01-05
AU1259776A (en) 1977-10-06
CA1031588A (en) 1978-05-23
FR2307088A1 (fr) 1976-11-05
BE840501A (nl) 1976-10-08
JPS51124007A (en) 1976-10-29
NL7504371A (nl) 1976-10-13

Similar Documents

Publication Publication Date Title
US4074858A (en) High pressure pulsed water jet apparatus and process
US3822557A (en) Jet sheet and circular pile with water hammer assist
US4067401A (en) Pile-driving hammer
US4755080A (en) Device for inserting a drainage wick into the ground
EP0301116B1 (de) Tauchfähige elektrohydraulische Antriebseinheit für zum Unterwassereinsatz ausgelegte Ramm- und Arbeitsgeräte
EP0301113A1 (de) Vorrichtung zum Abtrennen rohrförmiger Gründungspfähle unter Wasser
NO137512B (no) Trykkluftdrevet, repeterende pelerammer
KR200416045Y1 (ko) 유압 브레이커의 실린더 및 피스톤 결합 구조
DE2804388A1 (de) Hydraulischer gesteinsbohrer
JP4149673B2 (ja) 土壌サンプルの採集装置
US3889482A (en) Jet sheet and circular pile with water hammer assist
US7381011B2 (en) Lubrication system for pile and method of using the same
CN2297538Y (zh) 井下高压水力射孔器
US2787424A (en) Gyratory crusher with sealing ring
SE447924B (sv) Forfarande och apparat for foruppspreckning av ett berglager
DE2841203A1 (de) Foerdervorrichtung zum foerdern von schlamm, insbesondere erzschlamm, aus grossen tiefen
SU1197809A1 (ru) Электродна головка дл контактной точечной сварки
RU2166024C2 (ru) Свая и способ ее погружения в грунт
DE2655541A1 (de) Verfahren und anordnung fuer das vertikale einrammen von rohren
SU928013A1 (ru) Скважинный гидромонитор
SU964130A1 (ru) Погружной пневмоударник
US5246079A (en) High-efficiency earth boring system
CN210797557U (zh) 一种静压桩机的刮泥装置
CN210087233U (zh) 一种可降低打桩阻力的注水装置
CN208545791U (zh) 一种适用于破碎锤缸体的导向活塞环